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J/A+A/530/A108      VLT-FLAMES Tarantula Survey              (Evans+, 2011)

The VLT-FLAMES Tarantula Survey. I. Introduction and observational overview. Evans C.J., Taylor W.D., Henault-Brunet V., Sana H., De Koter A., Simon-diaz S., Carraro G., Bagnoli T., Bastian N., Bestenlehner J.M., Bonanos A.Z., Bressert E., Brott I., Campbell M.A., Cantiello M., Clark J.S., Costa E., Crowther P.A., De Mink S.E., Doran E., Dufton P.L., Dunstall P.R., Friedrich K., Garcia M., Gieles M., Graefener G., Herrero A., Howarth I.D., Izzard R.G., Langer N., Lennon D.J., Maiz Apellaniz J., Markova N., Najarro F., Puls J., Ramirez O.H., Sabin-Sanjulian C., Smartt S.J., Stroud V.E., van Loon J.T., Vink J.S., Walborn N.R. <Astron. Astrophys., 530, A108 (2011)> =2011A&A...530A.108E
ADC_Keywords: Surveys ; Magellanic Clouds ; Stars, early-type ; Photometry, infrared Keywords: open clusters and associations: individual: 30 Doradus - stars: early-type - stars: fundamental parameters - binaries: spectroscopic - stars: Wolf-Rayet Abstract: The VLT-FLAMES Tarantula Survey (VFTS) is an ESO Large Programme that has obtained multi-epoch optical spectroscopy of over 800 massive stars in the 30 Doradus region of the Large Magellanic Cloud (LMC). Here we introduce our scientific motivations and give an overview of the survey targets, including optical and near-infrared photometry and comprehensive details of the data reduction. One of the principal objectives was to detect massive binary systems via variations in their radial velocities, thus shaping the multi-epoch observing strategy. Spectral classifications are given for the massive emission-line stars observed by the survey, including the discovery of a new Wolf-Rayet star (VFTS 682, classified as WN5h), 2' to the northeast of R136. To illustrate the diversity of objects encompassed by the survey, we investigate the spectral properties of sixteen targets identified by Gruendl & Chu (2009, Cat. J/ApJS/184/172) from Spitzer photometry as candidate young stellar objects or stars with notable mid-infrared excesses. Detailed spectral classification and quantitative analysis of the O- and B-type stars in the VFTS sample, paying particular attention to the effects of rotational mixing and binarity, will be presented in a series of future articles to address fundamental questions in both stellar and cluster evolution. Description: The Tarantula Survey employs three modes of the Fibre Large Array Multi-Element Spectrograph (FLAMES) instrument on the VLT: Medusa-Giraffe, ARGUS-Giraffe and UVES. Most of the Medusa observations were obtained over the period 2008 October to 2009 February. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table5.dat 154 930 Observational information for the VLT-FLAMES Tarantula Survey (VFTS) targets table6.dat 58 918 Near-IR photometry from the InfraRed Survey Facility (IRSF) Magellanic Clouds catalogue (Kato et al., 2007, Cat. II/288) for targets observed by the VLT-FLAMES Tarantula Survey (VFTS)
See also: II/288 : IRSF Magellanic Clouds Point Source Catalog (Kato+ 2007) J/ApJS/184/172 : High- and intermediate-mass YSOs in the LMC (Gruendl+, 2009) J/A+A/550/A107 : RV catalogue of O stars in 30 Doradus (Sana+, 2013) J/A+A/550/A108 : DIB in VLT-FLAMES Tarantula Survey (van Loon+, 2012) J/A+A/550/A109 : vsini in VLT-FLAMES Tarantula Survey (Dufton+, 2013) Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 4 I4 --- VFTS [1/1037] Star sequential number 6- 11 A6 --- Field Field designation (1) 14- 15 I2 h RAh Right ascension (J2000) 17- 18 I2 min RAm Right ascension (J2000) 20- 25 F6.3 s RAs Right ascension (J2000) 27 A1 --- DE- Declination sign (J2000) 28- 29 I2 deg DEd Declination (J2000) 31- 32 I2 arcmin DEm Declination (J2000) 34- 38 F5.2 arcsec DEs Declination (J2000) 40- 44 F5.2 arcmin rd1 Radial distance (in arcmin) to the core of R136 (2) 46- 50 F5.1 pc rd2 Radial distance (in pc) to the core of R136 (2) 52- 56 F5.2 mag Vmag ?=- V magnitude 58- 62 F5.2 mag B-V ?=- B-V colour index 64 A1 --- Ref Reference of photometry (3) 66-154 A89 --- Com Aliases and comments (4)
Note (1): The FLAMES-Medusa configuration ("A" to "I") or FLAMES-ARGUS pointing ("A1" to "A5") used to observe each target. "U" indicates those observed with the fibre-feed to UVES. Note (2): Radial distances to the core of R136 (specifically, R136-a1: 05:38:42.39-69:06:02.91, J2000.0). Note (3): Sources of photometry are as follows: C = CTIO data, current study P = Parker, 1993, Cat. II/187 S = Selman et al., 1999, Cat. J/A+A/341/98 W = WFI data, current study Z = Zaritsky et al., 2004AJ....128.1606Z Note (4): Aliases/previous identifications of the targets. Sources of identifications are: R = Feast et al. 1960MNRAS.121..337F, <RMC NNN> Sk = Sanduleak 1970, Cat. III/113, <Sk -DD NNNA> BI = Brunet et al. 1975A&AS...21..109B, <BI NNN> Brey = Breysacher 1981A&AS...43..203B, <Brey NNN> Mk = Melnick 1985A&A...153..235M, <Cl* NGC 2070 Mel NNW> M87 = Moffat et al. 1987ApJ...312..612M T88 = Testor et al., 1988Msngr..54...43T, <[TLD88] NN> ST92 = Schild & Testor 1992A&AS...92..729S, <[ST92] N-NNN> P93 = Parker, 1993, Cat. II/187, <[P93] NNNN> WB97 = Walborn & Blades 1997ApJS..112..457W, <[WB97] NN> BAT99 = Breysacher et al., 1999A&AS..137..117B, <BAT99 NNN> S99 = Selman et al. 1999, Cat. J/A+A/341/98, <Cl* NGC 2070 SMB NNNN> GC00 = Grebel & Chu 2000AJ....119..787G, <[GC2000] BeNN> 2MASS = Skrutskie et al. 2006, Cat. VII/233 A total of 22 stars have some degree of cross-contamination from adjacent spectra on the detector, see Sect. 2.2.4 for details.
Byte-by-byte Description of file: table6.dat
Bytes Format Units Label Explanations
1- 4 I4 --- VFTS [1/1037] Star sequential number 6- 21 A16 --- IRSF IRSF identification, HHMMSSss+DDMMSSs (5) 23- 27 F5.2 mag Jmag ?=- IRSF J magnitude 29- 32 F4.2 mag e_Jmag ?=- rms uncertainty on Jmag 34- 38 F5.2 mag Hmag ?=- IRSF H magnitude 40- 43 F4.2 mag e_Hmag ?=- rms uncertainty on Hmag 45- 49 F5.2 mag Ksmag ?=- IRSF Ks magnitude 51- 54 F4.2 mag e_Ksmag ?=- rms uncertainty on Ksmag 56- 58 I03 --- Qual Quality flag for JHKs (6)
Note (5): IRSF photometry (Cat. II/288) is not available for six Medusa targets: VFTS 151, 503, 275, 620, 823, and 828; nor for six ARGUS sources: VFTS 1012, 1014, 1015, 1019, 1024, and 1025. Note (6): for each of the 3 bands, the flags are: 1=point-like; 2=extended source; 3=saturated; 4=faint; 5=odd shaped (e.g. double sources); 0=no detection.
History: From electronic version of the journal References: Evans et al., Paper I 2011A&A...530A.108E, Cat. J/A+A/530/A108 Taylor et al., Paper II 2011A&A...530L..10T Bestenlehner et al., Paper III 2011A&A...530L..14B Bressert et al., Paper IV 2012A&A...542A..49B Dunstall et al., Paper V 2012A&A...542A..50D Henault-Brunet et al., Paper VI 2012A&A...542A..49B Henault-Brunet et al., Paper VII 2012A&A...546A..73H Sana et al., Paper VIII 2013A&A...550A.107S, Cat. J/A+A/550/A107 van Loon et al., Paper IX 2012A&A...550A.108V, Cat. J/A+A/550/A108 Dufton et al., Paper X 2012A&A...550A.109D, Cat. J/A+A/550/A109
(End) Patricia Vannier [CDS] 19-Sep-2011
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